Temperature dependence of spin-orbit torques in W/CoFeB bilayers

Witold Skowroński, Monika Cecot, Jarosław Kanak, Sławomir Ziȩtek, Tomasz Stobiecki, Lide Yao, Sebastiaan Van Dijken, Takayuki Nozaki, Kay Yakushiji, Shinji Yuasa

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)
230 Downloads (Pure)

Abstract

We report on the temperature variation of spin-orbit torques in perpendicularly magnetized W/CoFeB bilayers. Harmonic Hall voltage measurements in perpendicularly magnetized CoFeB reveal increased longitudinal and transverse effective magnetic field components at low temperatures. The damping-like spin-orbit torque reaches an efficiency of 0.55 at 19 K. Scanning transmission electron microscopy and X-ray reflectivity measurements indicate that considerable interface mixing between W and CoFeB may be responsible for strong spin-orbit interactions.

Original languageEnglish
Article number062407
Pages (from-to)1-4
JournalApplied Physics Letters
Volume109
Issue number6
DOIs
Publication statusPublished - 8 Aug 2016
MoE publication typeA1 Journal article-refereed

Fingerprint Dive into the research topics of 'Temperature dependence of spin-orbit torques in W/CoFeB bilayers'. Together they form a unique fingerprint.

Cite this